One of the great benefits of heroquesting is the ability to gain magic outside of what can be gained from one’s cult. These magic abilities often operate mechanically similarly to Rune spells. Sometimes these new spells can be incorporated within the cult structure, creating a new subcult. For example, Garundyer gained the spells of Hailstones from Siglolf Cloudcrusher – these spells form the basis of the Cloudcrusher subcult of Orlanth Thundrous.
Alternatively, these new spells can form the basis of a new cult similar to a Spirit Cult. Hon-eel brought forth Bless Maize which became the basis of her cult. Argrath brought forth the White Bull which has become a popular Spirit Cult in Prax.
Most often, these new abilities are personal to the quester. Sarostip has the ability to kill with his left eye. Hofstaring had his flying spear. Jaldon Goldentooth has his ability to bite through walls. Harrek has his God-Spirit White Bear Cloak. Many heroes possess the ability to return from the dead or to Discorporate their spirits.
The distinctions between these approaches and why an ability gained on a heroquest might be personal or might be incorporated into a cult can get more than a little fuzzy or contradictory, but there are certain generalizations. Powers gained on quests where the hero travels in the footsteps of their god are easiest to incorporate into their cult. Powers gained on new quests that can be repeated but are outside of the mythos of the cult must become a new cult. And powers not shared with others remain personal.
And a few of the powers or side effects gained through heroquests don’t fit into either Rune Magic or Spirit Magic. The best known is of course unaging, but also things like lack of shadow despite the sun, no sweat (while being unaffected by heat, cold, or exertion), and so forth.It is important to keep in mind that abilities gained through heroquests are exceptions to the general rules of magic. They are examples of direct interactions with the raw source of magic, rather than the more formulaic expressions of rune magic, spirit magic, or sorcery.